Hardware Connection; Preparation - TOHATSU MFS25 Service Manual

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Troubleshooting
K

2.Hardware Connection

1) Preparation

Diagnosis Harness
Battery (12V)
Computer
Diagnosis
Harness
If your computer is not provided with RS232C Port (9
Pins), use USB conversion cable as shown.
• When using USB conversion cable, install
necessary software in accordance with the
instructions, and then, proceed to next
operation.
• USB cable operates only on OS of Windows 98
and after. (It will not operate on Windows 95.)
3AC DIAGNOSIS connection point (engine)
• Connect to connector on upper part of ECU.
9-22
ON/OFF switch
for function test
and running (drop) test
Connected to ECU
(Engine)
Connected to battery.
(Starting battery
can be used.)
Connected to computer
*RS232C Port (9 Pins)
RS232C Port (9 Pins) USB Port
ECU
25/30 2006